Simple genetic pedigree tree example with double cousin replationship

{
  "resourceType" : "List",
  "id" : "example-double-cousin-relationship",
  "contained" : [{
    "resourceType" : "FamilyMemberHistory",
    "id" : "1",
    "status" : "completed",
    "patient" : {
      "reference" : "Patient/example",
      "display" : "Pam Taylor"
    },
    "name" : "Mary",
    "relationship" : {
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v3-RoleCode",
        "code" : "NMTH",
        "display" : "natural mother"
      }],
      "text" : "natural mother"
    },
    "deceasedBoolean" : true,
    "condition" : [{
      "code" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "73211009",
          "display" : "Diabetes mellitus"
        }],
        "text" : "Diabetes mellitus"
      },
      "onsetAge" : {
        "value" : 45,
        "unit" : "yr",
        "system" : "http://unitsofmeasure.org",
        "code" : "a"
      }
    }]
  },
  {
    "resourceType" : "FamilyMemberHistory",
    "id" : "2",
    "status" : "completed",
    "patient" : {
      "reference" : "Patient/example",
      "display" : "Pam Taylor"
    },
    "name" : "Bob",
    "relationship" : {
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v3-RoleCode",
        "code" : "PUNCLE",
        "display" : "paternal uncle"
      }],
      "text" : "paternal uncle"
    },
    "condition" : [{
      "code" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "1481000119100",
          "display" : "Diabetes mellitus type 2 without retinopathy"
        }],
        "text" : "Diabetes mellitus type 2 without retinopathy"
      },
      "onsetAge" : {
        "value" : 35,
        "unit" : "yr",
        "system" : "http://unitsofmeasure.org",
        "code" : "a"
      }
    }]
  },
  {
    "resourceType" : "FamilyMemberHistory",
    "id" : "3",
    "status" : "completed",
    "patient" : {
      "reference" : "Patient/example",
      "display" : "Pam Taylor"
    },
    "name" : "Jon",
    "relationship" : {
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v3-RoleCode",
        "code" : "MUNCLE",
        "display" : "maternal uncle"
      }],
      "text" : "maternal uncle"
    }
  },
  {
    "resourceType" : "FamilyMemberHistory",
    "id" : "4",
    "extension" : [{
      "url" : "http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-sibling",
      "extension" : [{
        "url" : "type",
        "valueCodeableConcept" : {
          "coding" : [{
            "system" : "http://terminology.hl7.org/CodeSystem/v3-RoleCode",
            "code" : "NSIS",
            "display" : "natural sister"
          }],
          "text" : "natural sister"
        }
      },
      {
        "url" : "reference",
        "valueReference" : {
          "reference" : "FamilyMemberHistory/mother",
          "display" : "paternal grandmother"
        }
      }]
    }],
    "status" : "completed",
    "patient" : {
      "reference" : "Patient/example",
      "display" : "Pam Taylor"
    },
    "name" : "Alica",
    "relationship" : {
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v3-RoleCode",
        "code" : "MGRMTH",
        "display" : "maternal grandmother"
      }],
      "text" : "maternal grandmother"
    },
    "ageAge" : {
      "value" : 70,
      "unit" : "yr",
      "system" : "http://unitsofmeasure.org",
      "code" : "a"
    }
  },
  {
    "resourceType" : "FamilyMemberHistory",
    "id" : "5",
    "extension" : [{
      "url" : "http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-parent",
      "extension" : [{
        "url" : "type",
        "valueCodeableConcept" : {
          "coding" : [{
            "system" : "http://terminology.hl7.org/CodeSystem/v3-RoleCode",
            "code" : "MTH",
            "display" : "mother"
          }],
          "text" : "mother"
        }
      },
      {
        "url" : "reference",
        "valueReference" : {
          "reference" : "FamilyMemberHistory/147146",
          "display" : "maternal grandmother"
        }
      }]
    }],
    "status" : "completed",
    "patient" : {
      "reference" : "Patient/example",
      "display" : "Pam Taylor"
    },
    "name" : "Aunt with Parent ID",
    "relationship" : {
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v3-RoleCode",
        "code" : "MAUNT",
        "display" : "maternal aunt"
      }],
      "text" : "maternal aunt"
    },
    "sex" : {
      "coding" : [{
        "system" : "http://hl7.org/fhir/administrative-gender",
        "code" : "female",
        "display" : "Female"
      }]
    },
    "ageAge" : {
      "value" : 55,
      "unit" : "yr",
      "system" : "http://unitsofmeasure.org",
      "code" : "a"
    }
  },
  {
    "resourceType" : "FamilyMemberHistory",
    "id" : "6",
    "extension" : [{
      "url" : "http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-sibling",
      "extension" : [{
        "url" : "type",
        "valueCodeableConcept" : {
          "coding" : [{
            "system" : "http://terminology.hl7.org/CodeSystem/v3-RoleCode",
            "code" : "NBRO",
            "display" : "natural brother"
          }],
          "text" : "natural brother"
        }
      },
      {
        "url" : "reference",
        "valueReference" : {
          "reference" : "FamilyMemberHistory/father",
          "display" : "maternal grandfather"
        }
      }]
    }],
    "status" : "completed",
    "patient" : {
      "reference" : "Patient/example",
      "display" : "Pam Taylor"
    },
    "name" : "Paul",
    "relationship" : {
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v3-RoleCode",
        "code" : "PGRFTH",
        "display" : "Paternal grandfather"
      }],
      "text" : "Paternal grandfather"
    },
    "ageAge" : {
      "value" : 74,
      "unit" : "yr",
      "system" : "http://unitsofmeasure.org",
      "code" : "b"
    }
  }],
  "status" : "current",
  "mode" : "snapshot",
  "code" : {
    "coding" : [{
      "system" : "http://loinc.org",
      "code" : "80738-8",
      "display" : "TPMT gene mutations found [Identifier] in Blood or Tissue by Sequencing Nominal"
    }],
    "text" : "TPMT gene mutations found [Identifier] in Blood or Tissue by Sequencing Nominal"
  },
  "subject" : [{
    "reference" : "Patient/example",
    "display" : "Pam Taylor"
  }],
  "entry" : [{
    "item" : {
      "reference" : "#1"
    }
  },
  {
    "item" : {
      "reference" : "#2"
    }
  },
  {
    "item" : {
      "reference" : "#3"
    }
  },
  {
    "item" : {
      "reference" : "#4"
    }
  },
  {
    "item" : {
      "reference" : "#5"
    }
  },
  {
    "item" : {
      "reference" : "#6"
    }
  }]
}